CD22 TCR-Engineered T Cells Exert Anti-Leukemia Cytotoxicity without Causing Inflammatory Responses

Chimeric antigen receptor (CAR) T cells are remarkably effective, especially against B-cell malignancies. However, CAR-T cell therapy is also associated with cytokine-driven inflammatory toxicities such as cytokine release syndrome. Similar cytokine-related toxicity can occur after bispecific T-cell engager (BiTE) administration. It is unknown whether these inflammatory responses are specifically related to T-cell-mediated therapies that are activated through artificial CAR or BiTE signals.